Morpheus famous Matrix quote:

Some Mass Memory Discrepancy Effects are more like memes than actual Mandela Effects. "Beam me up Scotty" is at one end, where everyone knows it wasn't actually said by Kirk in Star Trek. At the other end there are the Forrest Gump "life is/was like a box of chocolates" quotes, where it's quite a shock to discover they had misremembered it. Somewhere in between there are plenty of others, such as The Matrix line "What if I told you..."

Many people remember this being said by Morpheus when he first met Neo, in particular during the "blue pill red pill" scene.

It certainly is an internet meme now, with the familar Morpheus image headed by "What if I told you.." and something suitably witty or topical, as added by some online meme image generator.

But actually in the movie? What if I told you it never was?

Of all the movies...

The Matrix famously centers around the world people think they live in not being real, and another, deeper one lies behind it. The movie follows Neo, played by Keanu Reeves, as he learns this fundamental truth. Well, you can see why this is so significant to the Mandela Effect - if there were any to be found in movies, this is the equivalent of the Rosetta Stone.

He is guided by Morpheus, and at one pivotal point in the movie is asked to decide whether he wants the actual truth, or to remain blissfully unaware. This is the famous red pill/blue pill scene, and the one where people are the most certain he said the "what if I told you..." line. The trouble is, it's neither there nor in the movie anywhere else.